1·But all the conventional vegetative propagation methods have failed to reproduce it.
用常规无性繁殖方法育苗均未成功。
2·Raising plants from cuttings is one of the most common methods of vegetative propagation.
提高植物扦插繁殖是一种最常见的方法，无性繁殖。
3·Phyllitis japonica could be available from spore propagation and. vegetative propagation.
对开蕨可以进行孢子繁殖和分株繁殖。
4·On the contrary, the ability of vegetative propagation of the three populations were strong.
相反，三个种群的营养繁殖能力较强。
5·The accumulation of virus in sugarcane stalks causes a yearly serious diseases because of vegetative propagation.
甘蔗属于无性繁殖作物，病毒的累积使病害逐年加重。
6·Vegetative propagation is widely used in forestry, however, the maturation that due to phase changes during tree development is a huge obstacle.
无性繁殖在林业中应用很普遍，而由树木发育阶段转变带来的成熟效应问题，一直是无性系造林的障碍。
7·Through variance analysis, it showed obviously variance comparing with non pre - treatment. It was an ideal way for vegetative propagation to use branch diameter …
经方差分析，与不经预处理的组合比较有显著差异，筛选出杜英用大枝径切穗条经预处理及激素处理是最理想的无性繁殖方法。
8·Studies were made on the vegetative propagation coefficient and cormels biological characters using eighth-excision in different development phase of Lycoris radiate.
在红花石蒜不同生长发育期进行八分法切割繁殖，研究无性繁殖系数和子球生物学性状差异性。
9·The success of this technology and improve the quality of poultry for the vegetative propagation of rare and endangered animals, extinct species of great significance Chuan.
这一技术的成功与完善对于优良家禽的无性繁殖和濒临绝迹的珍贵动物的传种意义重大。
10·Moreover, corms used for vegetative propagation are susceptible to disease, tissue senescence and degeneration, and the merits will be declined along with the process of storage and cultivation.
而球茎繁殖是营养繁殖方式的一种，容易感染病毒，随着储存和种植时间的延长，易出现衰老和退化现象，使香雪兰的品质下降。